Lockable gas cock



SePt- 23 ,1924. v

v A. .GALLO LOCKABLE GAS' CQCK' Filed Jan. 22. 1921 Patented Sept. 23,1924.

UNITED STATES ANTONI() GALLO', OF PEEKSKILL, NEW YORK.

LOCKABLE GAS COCK.

Application led January 22, 192i.

T 0 all 107mm t may concern:

Be it known that I, ANTONIO GALLO, a citizen of the United States,residing at Peekskill, in the county of lVestchester and State of NewYork, have invented new and useful Improvements in Lockable Gras Cocks,of which the following is a specification. i i

This invention relates to gas cocks, and has reference to means forlocking the cock to prevent, not so much its being tampered with, but tosecure the cock against accidental opening. The means are attained asset forth in this specification and the accompanying drawings, in whichlike letters referto similar parts throughout the several views.

Fig. l is a side elevation of a simple gas cock as used for flexibletube connection having my invention attached thereto. Fig. 2 is a planof the gas cock shown in Fig. 1. Fig. 3 represents a portion of the plugof the gas cock partly in longitudinal section to show the lockingdevices. Fig. t is a representation the same as in 3 showing the devicesin unlocked position. Figs. 5 and 6 are details of the push and lockingbolts. Fig. 7 shows the application of the device to a lever gas cock.Figs. 8, A, 5 and 6 are upon an enlarged scale, and Figs. 1 2 and 7 arenatural sizes.

Figs. 3 and lclearly show the manner of applying the devices. A hole ismade horizontally through, preferably, the upper part of the cock plugZ9, one end of the hole being of a lesser diameter than the remain inglength of the hole. A plug u is secured in the larger end of the holeforming a chamber 1. A slotted bolt a, Figs. 3 4L 5 and 6 is fitted toslide easily in the chamber, and is provided with a reduced end portionm that reaches through the small end of the hole, as in Figs. l 3 andet. A spring s in the chamber pushes the bolt n forward as in Fig. 3.

Intersecting with the chamber r a vertical chamber r is bored, and isfitted with a push-plug c'. This plug passes through a slot in the bolt1t, as in Figs. 3 l 5 and 6. It is provided with a head e, the form ofwhich is not material except to be adapted to its position and to beeasy of access. A spring s pushes the plug outwardly.

The slot in the bolt n has its inner end,

Serial No. 439,101.

that is towards the spring, beveled as at a', Figs. 3 l and 6. A notchis cut in the push-plug at 0, Figs. 3 and 4, which has its upper sidebeveled to engage with the beveled face of the bolt. The parts are innormal position as in Fig. 3, the push-plug and bolt interlocking bymeans of the beveled V faces and the pressure of the springs, and thepart m of the bolt extends beyond the surface of the plug Pressure onvthe head c depresses the push-plug and forces inwardly 'he part m of thebolt, as in Fig. 4f.. Then the pressure on the head e is released thesprings s s restore the parts to their normal places. The point mbecomes the locking bolt when the plug o is in place as in Fig. l. Theusual plug-stop is shown at fu and the bolt ml at right angles thereto.A recess to receive the bolt is cut in the {ia-nge m of the cock asindicated in Figs. l and 2.

lt will be observed in Fig. l that when the head c is depressed to itslimit, the beveled faces of the bolt and push-plug do not disengage. lfthey did, it would be possible, in case the spring s acted more slowlythan the spring s, for the spring s to shoot the push-plug entirely outof its chamber. As the construction docs not admit of theirdisengagement when the springs are in place that cannot happen.

The plug a in the end of the chamber r may be driven in as in Fig. 3, orit may be screwed in as in Fig. A.

"While the details of this invention are described in connection withthe thumb-handle cocks, it is obvious that it is applicable to any formof plug-cocks, as indicated in Fig. 7.

Having described the invention, what I claim and desire to secure byLetters Patent, is-

In a lockable gas cock the combination with the plug of the cock of ahorizontal chamber in the plug separate from the gas passage through theplug, an inner portion of the chamber larger than the outlet from thechamber, a bolt within the chamber fitting the larger and the smallerdiameters of the chamber', the bolt having a lateral movement within thechamber the smaller outer end of the bolt extending beyond the chamber,a recess in the gas-cock body adapted to receive the small outer end ofthe bolt,

a Spring Within the larger chamber to push the bolt outwardly, thelarger part of the bolt slottedI lengthwise7 a beveled face Within theyslot, and a vertical recess 'in the 5 plug intersecting the bolt slot, Lpush plug in Said recess, the inner end of the push plug flattened topass through the slot in the bolt, a portion of the flattened plugreduced in Width and forming u bevel surface to engagewit-h the bevel inthe slot in smid l" boltgmd e' retractile spring undeithe push- Vplug,all us hel-ein set forth.

ANTONIO GALLO.

